<template>
  <div>
   <h1>图表</h1>
   <HeaderBar>
     {{ msg | cap }}
   </HeaderBar>
   <div id="main" style="width: 500px;height: 500px"></div>
  </div>
</template>

<script>
import echarts from 'echarts';
export default {
  data() {
    return {
      msg: 'hello world'
    }
  },
  mounted() {
    this.drawBar()
  },
  // 局部过滤器
  filters: {
    cap: function(value) {
      if (!value) return ''
      value = value.toString()
      return value.charAt(0).toUpperCase() + value.slice(1)
    }
  },
  methods: {
    drawBar() {
      // eslint-disable-next-line
      var a = 1;
      /* eslint-disable */
      // 基于准备好的dom，初始化echarts实例
      var myChart = echarts.init(document.getElementById('main'));
      // 绘制图表
      myChart.setOption({
          title: {
              text: 'ECharts 入门示例'
          },
          tooltip: {},
          xAxis: {
              data: ['衬衫', '羊毛衫', '雪纺衫', '裤子', '高跟鞋', '袜子']
          },
          yAxis: {},
          series: [{
              name: '销量',
              type: 'bar',
              data: [5, 20, 36, 10, 10, 20]
          }]
      });
      /* eslint-disable */
    }
  }
}
</script>

<style>

</style>
